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<head><meta charset="utf-8"><title>avr unwinding · t-compiler/help · Zulip Chat Archive</title></head>
<h2>Stream: <a href="https://rust-lang.github.io/zulip_archive/stream/182449-t-compiler/help/index.html">t-compiler/help</a></h2>
<h3>Topic: <a href="https://rust-lang.github.io/zulip_archive/stream/182449-t-compiler/help/topic/avr.20unwinding.html">avr unwinding</a></h3>

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<a name="203048361"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/182449-t-compiler/help/topic/avr%20unwinding/near/203048361" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Eric Huss <a href="https://rust-lang.github.io/zulip_archive/stream/182449-t-compiler/help/topic/avr.20unwinding.html#203048361">(Jul 06 2020 at 22:30)</a>:</h4>
<p><span class="user-mention" data-user-id="116155">@Jake Goulding</span> I think you mentioned you've done some stuff with AVR.  Do you happen to know if the <code>avr-unknown-unknown</code> target supports unwinding?  I assume the answer is "no", but the target spec says "yes", so I am confused.</p>



<a name="203048410"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/182449-t-compiler/help/topic/avr%20unwinding/near/203048410" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Jonas Schievink  [he/him] <a href="https://rust-lang.github.io/zulip_archive/stream/182449-t-compiler/help/topic/avr.20unwinding.html#203048410">(Jul 06 2020 at 22:31)</a>:</h4>
<p>It does not</p>



<a name="203048424"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/182449-t-compiler/help/topic/avr%20unwinding/near/203048424" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Jonas Schievink  [he/him] <a href="https://rust-lang.github.io/zulip_archive/stream/182449-t-compiler/help/topic/avr.20unwinding.html#203048424">(Jul 06 2020 at 22:31)</a>:</h4>
<p>I thought we fixed that before landing... maybe not :)</p>



<a name="203048889"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/182449-t-compiler/help/topic/avr%20unwinding/near/203048889" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Jake Goulding <a href="https://rust-lang.github.io/zulip_archive/stream/182449-t-compiler/help/topic/avr.20unwinding.html#203048889">(Jul 06 2020 at 22:38)</a>:</h4>
<p>What would unwinding even entail?</p>



<a name="203048945"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/182449-t-compiler/help/topic/avr%20unwinding/near/203048945" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Jake Goulding <a href="https://rust-lang.github.io/zulip_archive/stream/182449-t-compiler/help/topic/avr.20unwinding.html#203048945">(Jul 06 2020 at 22:38)</a>:</h4>
<p>Like, if we wanted it to (not that I know we do)</p>



<a name="203049115"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/182449-t-compiler/help/topic/avr%20unwinding/near/203049115" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Jonas Schievink  [he/him] <a href="https://rust-lang.github.io/zulip_archive/stream/182449-t-compiler/help/topic/avr.20unwinding.html#203049115">(Jul 06 2020 at 22:40)</a>:</h4>
<p>I'm not sure you could even generate DWARF for AVR</p>



<a name="203050195"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/182449-t-compiler/help/topic/avr%20unwinding/near/203050195" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Eric Huss <a href="https://rust-lang.github.io/zulip_archive/stream/182449-t-compiler/help/topic/avr.20unwinding.html#203050195">(Jul 06 2020 at 22:52)</a>:</h4>
<p>ok, thanks!  Maybe either of you know if <code>mipsel-sony-psp</code> is in the same boat?  It is marked as unwind, but I assume it is not supported.</p>



<a name="203050411"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/182449-t-compiler/help/topic/avr%20unwinding/near/203050411" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Jonas Schievink  [he/him] <a href="https://rust-lang.github.io/zulip_archive/stream/182449-t-compiler/help/topic/avr.20unwinding.html#203050411">(Jul 06 2020 at 22:55)</a>:</h4>
<p>Probably, although the PSP is sufficiently advanced that I wouldn't be surprised if it could be made to work there</p>



<a name="203050786"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/182449-t-compiler/help/topic/avr%20unwinding/near/203050786" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Jonas Schievink  [he/him] <a href="https://rust-lang.github.io/zulip_archive/stream/182449-t-compiler/help/topic/avr.20unwinding.html#203050786">(Jul 06 2020 at 22:59)</a>:</h4>
<p>Seems like I should've checked both PRs more closely. Though that setting doesn't seem to cause any issues if it's turned on...</p>



<hr><p>Last updated: Aug 07 2021 at 22:04 UTC</p>
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